CareFusion AVEA Operating Instructions Manual page 196

182
High Ppeak
Range: 2 to 45 cmH
Default: 20 cmH
Note:
Not available in nasal CPAP mode unless a Rate of one or greater is set.
Alarm threshold setting changes during nCPAP / IMV will not be retained for other ventilation modes following exiting
from nasal CPAP mode.
nCPAP/IMV Disconnect Sensitivity
In nCPAP/IMV, patient circuit disconnect is based on characterization of the nasal prongs, carried out during the nCPAP
breathing circuit characterization.
In nCPAP/IMV, the CIRCUIT DISCONNECT alarm is based on leak flow during exhalation (periods of baseline
pressure). The circuit characterization provides a value for leak flow with the prongs removed from the nose. An alarm
will be indicated if, the leak flow exceeds an operator set percentage of this characterized leak flow. This alarm will
activate within 15 seconds of disconnect.
Range: 20 – 95 %
Resolution: 5%
Default: 95 %
The Disconnect Sensitivity setting banner appears in the message bar. The current measured leak is displayed on the
left side of the banner and the Disconnect Sensitivity setting is displayed on the right. The background colors illustrate
leak in blue relative to the Disconnect Sensitivity setting.
Following completion of Nasal CPAP / IMV characterization procedure, note the measured leak percentage. While the
nasal prongs are still disconnected, set the Disconnect Sensitivity slightly below the measured leak percentage. This will
help with proper disconnect detection, especially when using small prongs.
Note:
The Disconnect Sensitivity alarm is only available when a Rate of one or greater is set.
If the measured leak is within 5% of the Disconnect Sensitivity setting, the measured leak value will be displayed in RED
alerting the operator to an impending alarm.
When the Circuit Disconnect alarm is asserted, the Disconnect Sensitivity setting banner background will display the leak
level above the Disconnect Sensitivity setting in RED until the alarm situation is resolved.
Chapter 7: Alarms and Indicators
O (Neonate setting – nCPAP / IMV)
2
O
2
Operator's manual
L2786 Rev. M